Aeroengines arc sophisticated products resulting from over 50 years of research and development. During this time materials science has been a pacing technology, however the performances of current materials are reaching limits. The returns of research and development are diminishing, while the associated costs are continuously escalating. In todays highly competitive, cost driven marketplace this necessitates the definition of clear priorities for development work if future materials and

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... s are to satisfy the requirements of the market. This paper addresses the changing market scenario for both civil and military aeroengines, addressing in particular the impact of economic circumstances upon the current and future technological drivers. In the light of this discussion, potential areas of future materials development will be discussed in terms of both performance and cost benefits.